- Article
- Published:
Wavelet application to the magnetic field turbulence in the upstream region of the Martian bow shock
Earth, Planets and Space volume 50, pages 699–708 (1998)
Abstract
Wavelet analysis of the magnetic field fluctuations in the Martian foreshock is performed. Dynamical features of wave spectra are compared with plasma measurements of backstreaming ions and simulation results for all available data from the Phobos-2 spacecraft. A detailed analysis reveals the complex, fine structure of the ULF waves. It is shown that enhancement of this electromagnetic activity (mostly, at frequencies higher than the proton gyrofrequency) coincides with entry of the spacecraft into a bunch of exospheric protons reflected from the bow shock. Emissions near cyclotron frequencies of H+, He+, O+ are also recorded. These waves indicate pickup processes in the upstream region of Mars.
References
Bame, S. J., J. R. Asbridge, W. C. Feldman, J. T. Gosling, G. Paschmann, and N. Sckopke, Deceleration of the solar wind upstream from the Earth’s bow shock and the origin of diffuse upstream ions, J. Geophys. Res., 85, 2981–2990, 1980.
Barabash, S. and R. Lundin, Reflected ions near Mars: Phobos observations, Geophys. Res. Lett., 20, No. 9, 787–790, 1993.
Baumgartel, K., K. Sauer, E. Dubinin, V. Tarasov, and M. Dougherty, “Phobos-events”—signatures of solar wind interaction with a gas torus?, Earth Planets Space, 50, 453–462, 1998.
Brinca, A. L. and B. T. Tsurutani, On the excitation of cyclotron harmonic wave excited by newborn heavy ions, J. Geophys. Res., 94, 5467–5473, 1989.
Delva, M. and E. Dubinin, Upstream ULF fluctuations near Mars, J. Geophys. Res., 103, No. A1, 317–326, January, 1998.
Dubinin, E., D. Obod, A. Pedersen, and R. Grard, Mass-loading asymmetry in the upstream region near Mars, Geophys. Res. Lett., 21, 2769–2772, 1994.
Dubinin, E., D. Obod, R. Lundin, K. Schwingenschuh, and R. Grard, Some features of the Martian bow shock, Adv. Space Res., 15, (8/9)423–(8/9)431, 1995.
de Dudok Wit, T. and V. V. Krasnosel’skikh, Wavelet bicoherence analysis of strong plasma turbulence at the Earth’s quasi-parallel bow shock, Phys. Plasmas, 2, 4307–4311, 1995.
Escoubet, C. P., A. Pedersen, R. Schmidt, and P. A. Lindqvist, Density in the magnetosphere inferred from ISEE 1 spacecraft potential, J. Geophys. Res., 102, A8, 17595–17609, August, 1997.
Gabor, D., Theory of communication, J. IEEE, 93, 429–457, 1946.
Grard, R., A. Pedersen, S. Klimov, S. Savin, A. Skalsky, J.-G. Trotignon, and C. Kennel, First measurements of plasma waves near Mars, Nature, 341, 607–609, 1989.
Holter, Ø., Wavelet analysis series, Proceeding of the CLUSTER workshop on data analysis tools, Paris, ESA, Doc. SP-371, 1995.
Ip, W.H., Neutral particle environment of Mars: The exosphere-plasma interaction effects, Adv. Space Res., 12, (9)205–(9)211, 1992.
Krasnopolsky, V. and G. R. Gladstone, Helium on mars: EUVE and Phobos data and implications for Mars’ evolution, J. Geophys. Res., 101, 15765–15772, 1996.
Krasnosel’skih, V. V., T. Vinogradova, M. A. Balikhin, H. St C. Alleyne, A. K. Pardaens, L. J. Woolliscroft, S. I. Klimov, A. Petrukovitch, W. A. Mier-Jedrzejowicz, and J. Southwood, On the nature of low frequency turbulence in the foot of strong quasi-perpendicular shocks, Adv. Space Res., 11, No. 9, 15–18, 1991.
Lundin, R., B. Hultqvist, S. Olsen, R. Pellinen, I. Liede, A. Zakharov, E. Dubinin, and N. Pissarenko, The ASPERA experiment on the Soviet Phobos spacecraft, in Solar System Plasma Physics, edited by J. H. Waite, Jr., J. L. Burch, and T. E. Moore, pp. 417, AGU Monograph No. 54, Washington, D.C., 1989.
Melrose, D. B., Instabilities in Space and Laboratory Plasmas, pp. 170–175, Cambridge University Press, Cambridge, Great Britain, 1986.
Muret, P. and M. Omidi, Analysis of steepened magnetosonic waves using wavelet transform and neutral networks, J. Geophys. Res., 100, 23465–23479, 1995.
Pedersen, A., Derivations of the electron densities from differential potential measurement upstream and downstream of the bow shock and in the magnetosphere of Mars, J. Geophys. Res., 96, 11243–11253, 1991.
Rioul, O. and M. Vetterli, Wavelets and Signal Processing, IEEE Signal Processing Magazine, October 1991.
Rönmark, Computation of the dielectric tenzor of a maxwellian plasma, Kiruna Geophysical Institute, Preprint 58, 1982.
Rosenbauer, H., et al., Ions of Martian origin and plasma sheet in the Martian magnetosphere: initial results of the TAUS experiment, Nature, 341, 612–614, 1989.
Russell, C. T., J. G. Luhmann, K. Schwingenschuh, W. Reidler, and Ye. Yeroshenko, Upstream waves at Mars: Phobos observations, Geophys. Res. Lett, 17, No. 6, 897–900, 1990.
Sauer, K., K. Baumgartel, E. Dubinin, and V. Tarasov, Low-frequency waves and instabilities within the Martian bi-ion plasma, Earth Planets Space, 50, 269–278, 1998.
Skalsky, A., R. Grard, C. M. Nairn, S. Klimov, J.-G. Trotignon, and K. Schwingenschuh, The Martian bow shock: wave observations in the upstream region, J. Geophys. Res., 92, 2927–2933, 1992.
Skalsky, A., R. Grard, P. Kiraly, S. Klimov, K. Schwingenschuh, and J.-G. Trotignon, Simultaneous plasma wave and electron flux observations upstream of the Martian bow shock, Planet. Space Sci., 41, 183–198, 1993.
Trotignon, J. G., M. Hamelin, R. Grard, A. Pedersen, S. Klimov, S. Savin, A. Skalsky, and C. Kennel, A comparison between the Earth’s and Mars’ bow shocks detected by the Phobos Plasma Wave System, Planet. Space Sci., 39, 99–112, 1991.
Zank, G. P., H. L. Pauls, I. H. Cairns, and G. M. Webb, Interstellar pickup ions and quasi-perpendicular shocks: Implications for the termination shock and interplanetary shocks, J. Geophys. Res., 101, 457–477, 1996.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Tarasov, V., Dubinin, E., Perraut, S. et al. Wavelet application to the magnetic field turbulence in the upstream region of the Martian bow shock. Earth Planet Sp 50, 699–708 (1998). https://doi.org/10.1186/BF03352163
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1186/BF03352163